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UPSC NDA II 2023 Mathematics Solved Paper

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Consider the following for the next two (02) items that follow :
A quadratic equation is given by (a+b)x2−(a+b+c)x+k=0, where a,b,c are real.

[NDA II 2023]

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Question : 37

Total: 120

If k=c, then the roots of the equation are :

‌
a+c
a+b
and ‌
b
a+b
‌
a+c
a+b
and −‌
b
a+b
1 and ‌
c
a+b
-1 and −‌
c
a+b

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